Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

1 files changed, 42 insertions, 16 deletions

diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index dcbeb98f195a..92369655dca3 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -276,7 +276,7 @@ static bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
         struct drm_crtc *tmp;
         int crtc_mask = 1;
 
-        WARN(!crtc, "checking null crtc?");
+        WARN(!crtc, "checking null crtc?\n");
 
         dev = crtc->dev;
 
@@ -336,20 +336,20 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
                               struct drm_framebuffer *old_fb)
 {
         struct drm_device *dev = crtc->dev;
-        struct drm_display_mode *adjusted_mode, saved_mode;
+        struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode;
         struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
         struct drm_encoder_helper_funcs *encoder_funcs;
         int saved_x, saved_y;
         struct drm_encoder *encoder;
         bool ret = true;
 
-        adjusted_mode = drm_mode_duplicate(dev, mode);
-
         crtc->enabled = drm_helper_crtc_in_use(crtc);
-
         if (!crtc->enabled)
                 return true;
 
+        adjusted_mode = drm_mode_duplicate(dev, mode);
+
+        saved_hwmode = crtc->hwmode;
         saved_mode = crtc->mode;
         saved_x = crtc->x;
         saved_y = crtc->y;
@@ -427,11 +427,20 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
 
         }
 
-        /* XXX free adjustedmode */
-        drm_mode_destroy(dev, adjusted_mode);
+        /* Store real post-adjustment hardware mode. */
+        crtc->hwmode = *adjusted_mode;
+
+        /* Calculate and store various constants which
+         * are later needed by vblank and swap-completion
+         * timestamping. They are derived from true hwmode.
+         */
+        drm_calc_timestamping_constants(crtc);
+
         /* FIXME: add subpixel order */
 done:
+        drm_mode_destroy(dev, adjusted_mode);
         if (!ret) {
+                crtc->hwmode = saved_hwmode;
                 crtc->mode = saved_mode;
                 crtc->x = saved_x;
                 crtc->y = saved_y;
@@ -471,6 +480,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
         int count = 0, ro, fail = 0;
         struct drm_crtc_helper_funcs *crtc_funcs;
         int ret = 0;
+        int i;
 
         DRM_DEBUG_KMS("\n");
 
@@ -485,14 +495,17 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
 
         crtc_funcs = set->crtc->helper_private;
 
+        if (!set->mode)
+                set->fb = NULL;
+
         if (set->fb) {
                 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
                                 set->crtc->base.id, set->fb->base.id,
                                 (int)set->num_connectors, set->x, set->y);
         } else {
-                DRM_DEBUG_KMS("[CRTC:%d] [NOFB] #connectors=%d (x y) (%i %i)\n",
-                                set->crtc->base.id, (int)set->num_connectors,
-                                set->x, set->y);
+                DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
+                set->mode = NULL;
+                set->num_connectors = 0;
         }
 
         dev = set->crtc->dev;
@@ -637,8 +650,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                 mode_changed = true;
 
         if (mode_changed) {
-                set->crtc->enabled = (set->mode != NULL);
-                if (set->mode != NULL) {
+                set->crtc->enabled = drm_helper_crtc_in_use(set->crtc);
+                if (set->crtc->enabled) {
                         DRM_DEBUG_KMS("attempting to set mode from"
                                         " userspace\n");
                         drm_mode_debug_printmodeline(set->mode);
@@ -649,9 +662,16 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                                                       old_fb)) {
                                 DRM_ERROR("failed to set mode on [CRTC:%d]\n",
                                           set->crtc->base.id);
+                                set->crtc->fb = old_fb;
                                 ret = -EINVAL;
                                 goto fail;
                         }
+                        DRM_DEBUG_KMS("Setting connector DPMS state to on\n");
+                        for (i = 0; i < set->num_connectors; i++) {
+                                DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id,
+                                              drm_get_connector_name(set->connectors[i]));
+                                set->connectors[i]->dpms = DRM_MODE_DPMS_ON;
+                        }
                 }
                 drm_helper_disable_unused_functions(dev);
         } else if (fb_changed) {
@@ -663,8 +683,10 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                         set->crtc->fb = set->fb;
                 ret = crtc_funcs->mode_set_base(set->crtc,
                                                 set->x, set->y, old_fb);
-                if (ret != 0)
+                if (ret != 0) {
+                        set->crtc->fb = old_fb;
                         goto fail;
+                }
         }
 
         kfree(save_connectors);
@@ -841,7 +863,7 @@ static void output_poll_execute(struct work_struct *work)
         struct delayed_work *delayed_work = to_delayed_work(work);
         struct drm_device *dev = container_of(delayed_work, struct drm_device, mode_config.output_poll_work);
         struct drm_connector *connector;
-        enum drm_connector_status old_status, status;
+        enum drm_connector_status old_status;
         bool repoll = false, changed = false;
 
         if (!drm_kms_helper_poll)
@@ -866,8 +888,12 @@ static void output_poll_execute(struct work_struct *work)
                     !(connector->polled & DRM_CONNECTOR_POLL_HPD))
                         continue;
 
-                status = connector->funcs->detect(connector, false);
-                if (old_status != status)
+                connector->status = connector->funcs->detect(connector, false);
+                DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
+                              connector->base.id,
+                              drm_get_connector_name(connector),
+                              old_status, connector->status);
+                if (old_status != connector->status)
                         changed = true;
         }